2        9.
5
       10       13.5
        9       17.5
                                                    frequency
                                                   Chart  Title
       10       21.5
       10       25.5   10
        3       29.5   9.9
                                       10               10        10
        1       33.5                           9
                       9.8
frequency class mark
                       9.7
                       9.6
                       9.5
                                                                         3
                       9.4   2
                       9.3
                             2         10      9        10        10     3
                       9.2
                                 9.5    13.5   17.5      21.5 A
                                                        Column    25.5   2
 frequency
Chart  Title
     10        10
     10        10     3       1
5     21.5 A
     Column    25.5   29.5   33.5